private void TimeLine_PreviewMouseDown(object sender, MouseButtonEventArgs e)
{
FrameworkElement element = null;
try
{
element = ((FrameworkElement)e.OriginalSource).TemplatedParent as FrameworkElement;
}
catch (InvalidCastException)
{
return;
}
AllItems.ForEach(i => i.IsSelected = false);
SelectedItem = null;
if (element is TrackItem trackItem)
{
trackItem.IsSelected = true;
SelectedItem = trackItem;
ItemSelected?.Invoke(trackItem, new EventArgs());
}
else
{
ItemDeselected?.Invoke(null, new EventArgs());
}
}